Hey Jill. I did make a quick pass at gathering some statistics, but was unsuccessful and I don’t have a lot of time to devote to it tonight.
But I’ll offer some anecdotal observations. Texas, as did many other states, ramped up DWI penalties ~15 years ago. It is now major bad news to get busted, and a second bust is a visit to hell.
For some people the legal consequences remain something they don’t seem to notice, but for many, myself and many acquaintance included, personal knowledge of the newly heavy consequences did make an impression.
While I did not get arrested myself, a buddy with whom I’d been drinking one night did, soon after the new laws took effect. His tale of woe put me forever off of drinking and driving. I’ve been a taxicab consumer ever since, when such is demanded.
And many of my friends are now of the same mindset. We just make alternate arrangements for transportation if we’re gonna drink.
Or, don’t drink in a social setting (say, 50 miles down the road at a beach party) that makes taxicab transportation cost prohibitive.
This is, of course, in a state where we all grew up with it being perfectly legal to be drinking a beer while you drove down the road.
It’s had an impact.
It has not entirely cleaned up the situation. But it has made an impression. Some of that positive effect I percieve may well be attributable to the fact that my compatriots and I are ageing, and concomittally mellowing out. I don’t know if the younger d&d drivers are picking this up yet.
Another arena where new enforcement arrangements have definitely had an impact concerns all of those subject to drug testing. While I don’t smoke marijuana, I’ve known and know several people who do, or did. Many people have quit because of this.
So, while I do think that there’s much that is screwed-up about the drug and alcohol laws we live under, the fact remains that certain sanctions do seem to have an effect.
Others, of course, have adverse effects.
And your brother seems to be one of those who remain, for a while at least, immune to the remonstrations of the local criminal justice system.
Good luck with it, Sister!